Variable-frequency air conditioner and power supply control circuit thereof

A technology of power supply control circuit and frequency conversion air conditioner, which is applied in heating and ventilation control systems, space heating and ventilation, household heating, etc., can solve the problems of high power consumption of frequency conversion air conditioners, reduce power consumption, and solve excessive power consumption Effect

Active Publication Date: 2015-05-20
GD MIDEA AIR-CONDITIONING EQUIP CO LTD
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  • Abstract
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Problems solved by technology

[0003] The purpose of the present invention is to provide a power supply control circuit for an inverter air conditioner,

Method used

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  • Variable-frequency air conditioner and power supply control circuit thereof
  • Variable-frequency air conditioner and power supply control circuit thereof
  • Variable-frequency air conditioner and power supply control circuit thereof

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[0015] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0016] The embodiment of the present invention relates to an inverter air conditioner and its power supply control circuit. The inverter air conditioner includes a power load and a power supply control circuit. figure 1 The module structure of the power supply control circuit is shown. For the convenience of description, only the parts related to the embodiment of the present invention are shown, and the details are as follows:

[0017] In the embodiment of the present invention, the power supply control circuit 100 of the inverter air conditioner includes a rectifier circuit 101 , a power factor c...

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Abstract

The invention belongs to the technical field of air conditioner power supply control, and provides a variable-frequency air conditioner and a power supply control circuit thereof. According to the power supply control circuit, when the variable-frequency air conditioner is powered on, a controller drives a low-voltage power source control module to output low-voltage direct currents to a power factor correcting circuit and an electric load and simultaneously controls a precharging module to connect a rectifying circuit with an alternating-current power source; when the voltage of a bus capacitor rises to the work voltage, the controller controls a high-voltage power source control module to replace the precharing module to continue to connect the rectifying circuit with the alternating-current power source; when the variable-frequency air conditioner enters a standby state, the controller controls the high-voltage power source control module to disconnect connection between the rectifying circuit and the alternating-current power source, when the voltage of the bus capacitor drops to the safety voltage, the controller controls the low-voltage power source control module to stop outputting the low-voltage direct currents to the power factor correcting circuit and the electric load, and therefore power consumption of the variable-frequency air conditioner in the standby process is reduced.

Description

technical field [0001] The invention belongs to the technical field of air conditioner power supply control, and in particular relates to an inverter air conditioner and a power supply control circuit thereof. Background technique [0002] At present, in the daily use process, the working time of the inverter air conditioner is usually less than its standby time. In the existing technology, the inverter air conditioner is powered on when the inverter air conditioner is in standby, so that the inverter air conditioner can be turned on quickly when the user needs to use the inverter air conditioner. work, but this will cause the inverter air conditioner to consume more power during the standby process, resulting in high standby power consumption. Contents of the invention [0003] The purpose of the present invention is to provide a power supply control circuit for an inverter air conditioner, aiming to solve the problem of excessive power consumption of the inverter air con...

Claims

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Application Information

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IPC IPC(8): F24F11/00
CPCF24F11/30F24F11/46F24F11/62
Inventor 梁汝锦
Owner GD MIDEA AIR-CONDITIONING EQUIP CO LTD
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